Christoph Nega

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20242026

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hep-ph2025

Analytic two-loop amplitudes for di-jet and $γ +$ jet production mediated by a heavy-quark loop

Federico Coro, Christoph Nega, Lorenzo Tancredi +1

In this paper, we present analytical results for the two-loop QCD corrections to the production of two partons or a photon and a parton in hadronic collisions, mediated by loops of…

hep-ph2025

Analytic two-loop amplitudes for $q q ˉ \to γ γ$ and $g g \to γ γ$ mediated by a heavy-quark loop

Matteo Becchetti, Federico Coro, Christoph Nega +2

We address the analytic computation of the two-loop scattering amplitudes for the production of two photons in parton-parton scattering, mediated by loops of heavy quarks. Due to t…

Analytic two-loop amplitudes for di-jet and γ+jet production mediated by a heavy-quark loop

Analytic two-loop amplitudes for qqˉ​→γγ and gg→γγ mediated by a heavy-quark loop

Analytic two-loop amplitudes for di-jet and $γ +$ jet production mediated by a heavy-quark loop

Analytic two-loop amplitudes for $q q ˉ \to γ γ$ and $g g \to γ γ$ mediated by a heavy-quark loop